制得的光栅其第一衍射级次的开关比为87：1，显示了较好的开关能力。
The on - off of the first diffraction order of the grating is 87:1. The sample shows good switch ability.
本文利用严格耦合波理论对用于光纤光栅制作的相位掩模的衍射特性进行了深入的研究。
The diffraction characteristics of the phase mask for UV-written fiber grating is investigated using rigorous coupled-wave theory.
通过利用严格的耦合波理论计算光栅衍射效率的方法，分别编制出了计算te波和TM波的衍射效率程序。
Using the method of rigorous coupled-wave theory to compute the diffraction efficiency of a grating, the program for calculating diffraction efficiency for both te and TM polarization is made.
利用光学衍射原理，研制成了光纤光栅衍射屏，并与计算机神经网络相结合，开发了一种识别立体形状的视觉系统。
An optic fiber grating diffraction screen is developed by use of optical diffraction. Combining with computer neural network, a vision system for recognizing stereo shape is developed.
调谐机构由单片机控制的高频步进电机、衍射光栅、触发控制器组成。
Tuning mechanism consists of diffraction grating, trigger controller and high frequency stepping motor of monolithic microprocessor control.
首先应用耦合波理论对体全息光栅的衍射效率以及角度选择性和波长选择性等衍射特性进行了分析。
First, the properties of volume holographic grating, such as diffraction efficiencies, Angle and wavelength selectivity, have been theoretically analyzed by using the couple-wave theory.
本文讨论了瑞利散射光、拉曼散射光、漫散射光及荧光经光栅衍射而形成的高级次光谱的干扰。
The second order diffraction light of Rayleigh scattering light, Raman light, diffused light and the fluorescence diffracted from the grating have been discussed.
提出一种基于离散衍射光的全息光栅的带宽压缩算法。
Based on discrete diffraction light, an algorithm of holographic grating bandwidth compression is proposed.
本文给出了一种基于时域有限差分法(FDTD)的数值方法，计算制备在QWIP器件上的金属光栅的衍射效应。
A numerical approach based on finite difference time domain (FDTD) method was presented for investigating the diffraction effect of a metal grating fabricated in QWIP.
本文用半波带法对夫琅禾费光栅衍射进行分析该方法和常用的振幅矢量法相比，分析衍射条纹的位置更要快捷，明了。
The authors show that using the half-wave strip method to deduce the bright and dark fringe conditions of Fraunhofer grating diffraction is simpler than the amplitude vector method.
由此提出采用光栅衍射干涉测量薄膜折射率的方法和实验方案。
For these reasons we proposed methods and scheme for measuring film refractive index with grating diffraction interferometry.
根据单轴晶体的折射率椭球，从理论上分析了光折变体光栅的衍射效率与读出光偏振态的关系。
According to the refractive index ellipsoid of uniaxial crystal, the relationship between diffraction efficiency of volume grating and polarization state of readout beam is theoretically analyzed.
本文提出了一种快速自动测试平面光栅光谱衍射效率曲线的新方法。
This paper suggests a new method of rapid and automatic measuring the spectral diffraction efficiency curve of plane grating.
利用编写的程序计算并分析了一种用于激光取样光栅te波和TM波的衍射特性。
The diffraction properties of TE and TM polarizations for a beam-sampling grating are numerically analyzed with this program.
本文介绍了一种新型的基于改进傅科聚焦探测法且自带衍射光栅计量系统的非接触式位移传感器。
This paper presents a new non-contact displacement sensor with diffraction grating metrology system based on an improved Foucault focus detection method.
本文分析了斜射光波的光栅衍射特点，并在实验中得以验证。
The characteristics of diffraction grating of oblique incidence light wave are analysed theoretically and verified in experiments.
文章运用衍射理论，给出了实际光栅系统分辨本领的修正公式。
This paper applies diffraction theory, has given the corrected formula of the resolving power of actual grating system.
因此液晶光栅的这种光电特性在衍射光学、光电开关、光束偏转控制等许多领域具有广泛的应用前景。
So liquid crystal grating is used in extensive field such as diffraction optics, photoelectric switch, deflexion controlling of light beam.
固定在工作台上的全息衍射光栅实现了对工作台位移的高精度闭环检测。
A reflecting hologram diffraction grating was fixed to the stage to form a closed loop displacement measuring system.
运用严格的光栅衍射耦合波理论分析光栅的衍射特性，发现该方案不会引入相位畸变。
The rigorous coupled-wave theory is used to analyze the characteristics of grating diffraction, and the results indicate that this method produces no phase distortion.
本文给出了不等距光栅衍射光强度分布的一般公式，并引出了衍射—干涉复合因子的概念。
The general formula of the light strength distribution for a varied-line space grating is introduced. The concept of complex factor of diffraction-interference is conducted.
本文提出了一种双光束检测器测试平面光栅衍射效率的新方法。
A new method for measuring the spectral diffraction efficiency of plane grating with double-beam and single detector is suggested.
根据傅立叶光学理论从光栅的衍射频谱中可以反推光栅本身的多种信息，包括其形貌特征。
A lot of grating messages including its profile can be derived from diffraction spectrum of grating according to Fourier optical theory.
基于普物光学的双光束干涉和光栅衍射，定性分析全息照相。
A qualitative analysis of hologram with double beam interference and grating diffraction principles given in general physics is given.
采用矢量理论处理了多台阶位相光栅的衍射问题。
A vector theory for diffraction of multi step phase grating is presented.
对加入增益介质的F - P干涉仪的光谱特性与衍射光栅光谱仪的光谱特性作了定量对比。
This paper quantitatively compares the spectrum characteristics between Fabry-Perot interferometer with gain medium and diffraction grating spectrometer.
研究光纤光栅传感器的关键问题是光纤光栅的信号解调，即波长微小移位的检测问题。
The key problem of FBG sensor study is the optical fiber diffraction grating signal demodulation, namely, the detection of small shifting of wave length.
在有限电导率光栅的微分理论中引入校正傅里叶展开方法，改善了计算收敛性。
In order to improve the convergence rate, a correct Fourier expand method was introduced to differential theory of the finite conductivity diffraction grating.
光栅制作时引入的综合噪音对输出质量的影响及各衍射级能量的不均衡问题尚待进一步改进。
What remain to be improved are the effect of the general noise in grating-making on the output quality and the imbalance of diffraction order intensity.
光栅制作时引入的综合噪音对输出质量的影响及各衍射级能量的不均衡问题尚待进一步改进。
What remain to be improved are the effect of the general noise in grating-making on the output quality and the imbalance of diffraction order intensity.
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